Exhibit 12
Wisconsin Public Service Corporation
Ratio of Earnings to Fixed Charges and
Ratio of Earnings to Fixed Charges and Preferred Dividends
	2008
(Millions)	9 months			2007			2006			2005			2004			2003
EARNINGS
Earnings on common stock	$	102.0		$	110.2		$	99.0		$	81.4		$	104.8		$	78.9
Federal and state income taxes		57.9			66.8			58.3			44.1			51.3			45.7
Net pretax income		159.9			177.0			157.3			125.5			156.1			124.6
(Income) from less than 50% equity investees		(7.4	)		(9.3	)		(9.4	)		(7.5	)		(8.4	)		(6.0	)
Distributed earnings of less than 50% equity investees		5.6			6.8			6.2			5.5			5.9			4.3
Fixed charges		40.1			50.2			47.2			42.7			40.4			38.8
Subtract preference dividend requirement		3.6			4.9			4.9			4.7			4.6			4.8
Total earnings as defined	$	194.6		$	219.8		$	196.4		$	161.5		$	189.4		$	156.9
FIXED CHARGES
Interest on long-term debt, including related amortization	$	31.6		$	36.0		$	29.4		$	29.8		$	29.9		$	27.8
Other interest		3.2			7.8			11.2			6.5			4.5			4.9
Interest factor applicable to rentals		1.7			1.5			1.7			1.7			1.4			1.3
Fixed charges before preferred dividend requirement	$	36.5		$	45.3		$	42.3		$	38.0		$	35.8		$	34.0
Ratio of earnings to fixed charges		5.3			4.9			4.6			4.3			5.3			4.6
Preferred dividends (grossed up) (see below)	$	3.6		$	4.9		$	4.9		$	4.7		$	4.6		$	4.8
Total fixed charges including preferred dividend	$	40.1		$	50.2		$	47.2		$	42.7		$	40.4		$	38.8
Ratio of earnings to fixed charges and preferred dividends		4.9			4.4			4.2			3.8			4.7			4.0
PREFERRED DIVIDEND CALCULATION:
Preferred dividends	$	2.3		$	3.1		$	3.1		$	3.1		$	3.1		$	3.1
Tax rate		35.8	%		37.3	%		36.6	%		34.5	%		32.4	%		35.6	%
Preferred dividends (grossed up)	$	3.6		$	4.9		$	4.9		$	4.7		$	4.6		$	4.8